1. James Paget University Hospital National Health Service (NHS) Foundation Trust, Gorleston, England
2. Norwich Medical School, University of East Anglia, Norfolk, England
3. Guys & St Thomas Hospital NHS Foundation Trust, London, England
4. University Hospitals Birmingham NHS Foundation Trust, Birmingham, England
5. Wrightington Wigan and Leigh NHS Foundation Trust, Wigan, England
6. Freeman Hospital, Newcastle, England
7. Royal Surrey County Hospital, Guildford, England